David: Please check the 'Shotguns', 'FAQ', and 'Photo Trail' on the Home Page. You can determine the grade, date of manufacture, and how to obtain a research letter from the Cody Firearms Museum at the Buffalo Bill Historical Center. The 'FAQ' also has information regarding restoration and a replacement butt plate. Let us know where you're from, and we might be able to recomend a doublegun specialist smith near you to check out your treasure.